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Postprandial effects of pecan nuts ingestion on plasma level of nutrients, polyphenolic compounds and biomarkers of antioxidant status in human volunteers

March 26, 2016 | Author: | Posted in health and medicine, nutrition

Postprandial effects of pecan nuts ingestion on plasma level of nutrients , polyphenolic compounds and biomarkers of antioxidant status in human volunteers

Pecans are rich sources of phytochemicals such as vitamin E , calcium magnesium , potassium , zinc and fiber (Morgan et al , 2000 , as well as antioxidants that can have a unique effect on the body (Yochum et al 2000 . Pecans are also good sources of omega-3 fatty acids which plays several important roles in brain function . One of those roles may be to help prevent depression , which has a direct effect on brain [banner_entry_middle]

function and the ability to think clearly . Pecans contain different forms of vitamin E – known as tocopherol which protects fats from oxidation . Pecans are especially rich in one form of vitamin E – gamma tocopherol . An increased level of gamma tocopherol concentrations in the blood subsequently reduces a marker of lipid oxidation (Haddad , et al , 2006

Xianli Wu et al (2004 ) reported that pecans rank highest among all nuts and are among the top category of foods to contain the highest pecans had 5 ,095 TAC (Vegparadise News Bureau , 2004 , and a dietary fiber 9 .00 g /100 g (Feldman , 2002 . Plant sterols , widely researched and touted for their cholesterol-lowering ability are found naturally in pecans . They contain as much as 95 milligrams of plant sterols per 100 grams – 90 percent of which is in the form of beta-sitosterol Beta-sitosterol as a food component that competes with the absorption of cholesterol in the body , and thus has the ability to lower blood cholesterol levels . By increasing consumption of pecans (or peanuts , a person could easily raise the plant sterol levels in the diet to the point where health effects have been proven (Eitenmiller , 2000

Haddad , et al (2006 ) reported that the pecan-enriched diets significantly reduced lipid oxidation (by 7 .4 percent ) versus the Step I diet , and the blood levels of tocopherols were higher after participants were on the pecan diet . Cholesterol-adjusted plasma gamma-tocopherol in the study participants blood samples increased by 10 .1 percent (P .001 ) after eating the pecan diet . Another key research finding was beyond the reduced level of blood lipid oxidation , the various phytochemicals found in pecans seem to be protective of the pecan ‘s high levels of unsaturated fat . All unsaturated fats in foods can be prone to oxidation themselves (which some may describe in foods as rancidity Pecans , while high in unsaturated fat , are “self-protective ” due to their vitamin E content (tocopherols ) and relatively high content of complex phytonutrients , some of which have been identified as proanthocyanidins , or condensed tannins , which are recognized for their ability to slow the oxidation process

Diets that are high in monounsaturated fat (MUFA ) have been associated with reducing the risk of cardiovascular disease . According to this scientific statement from AHA ‘s Nutrition Committee , there is epidemiological evidence that dietary monounsaturated fats (MUFAs ) have a beneficial effect on the risk of (CHD . Kris-Etherton et al , 1999 from epidemiological studies concluded , there is consistent evidence that nuts have a… [banner_entry_footer]


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